<!--SIF Implementation Specification 2.2-6 (March 17, 2008)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://www.sifinfo.org/infrastructure/2.x" xmlns:sif="http://www.sifinfo.org/infrastructure/2.x" elementFormDefault="qualified">
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="imports/xml/xml.xsd" />
  <xs:complexType name="GradingAssignmentScoreType">
    <xs:annotation>
      <xs:documentation>This object provides score information about a particular assignment.</xs:documentation>
    </xs:annotation>
    <xs:sequence>
      <xs:element name="ScorePoints" minOccurs="0" nillable="true" type="xs:unsignedInt">
        <xs:annotation>
          <xs:documentation>The score represented as points.  Conditionally required that one or more of ScorePoints, ScorePercent or ScoreLetter must be filled in.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="ScorePercent" minOccurs="0" nillable="true" type="xs:decimal">
        <xs:annotation>
          <xs:documentation>The score represented as a percent.  Conditionally required that one or more of ScorePoints, ScorePercent or ScoreLetter must be filled in.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="ScoreLetter" minOccurs="0" nillable="true" type="xs:string">
        <xs:annotation>
          <xs:documentation>The score represented as a letter grade.  Conditionally required that one or more of ScorePoints, ScorePercent or ScoreLetter must be filled in.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="ScoreDescription" minOccurs="0" nillable="true" type="xs:string">
        <xs:annotation>
          <xs:documentation>Text description of the score.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="SIF_Metadata" minOccurs="0" nillable="true" type="sif:SIF_MetadataType" />
      <xs:element name="SIF_ExtendedElements" minOccurs="0" nillable="true" type="sif:SIF_ExtendedElementsType" />
    </xs:sequence>
    <xs:attribute name="StudentPersonalRefId" use="required" type="sif:IdRefType" />
    <xs:attribute name="SectionInfoRefId" use="required" type="sif:IdRefType" />
    <xs:attribute name="SchoolInfoRefId" use="required" type="sif:IdRefType">
      <xs:annotation>
        <xs:documentation>The GUID that specifies the school this score was recorded at.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
    <xs:attribute name="GradingAssignmentRefId" use="required" type="sif:IdRefType" />
  </xs:complexType>

  <xs:element name="GradingAssignmentScore" type="sif:GradingAssignmentScoreType" />

</xs:schema>